What Causes Stomach Cramps And Pain While Urinating?

Hi doctor I had sex on 1st March and too i pills 3 hours after unprotected sex. my cycle is schedule to be start in 9th march. It is 22th march now and still not started. I had cramps 2 days back in my stomach and from last two days Iam feeling pain while urinating. I am scared to visit doctor. Can you pls assist what went wrong that cycle is not started and why I am feeling pain while urinating Thanks rina YYYY@YYYY